Conceptual opto-mechanical design of SHARP: a near-infrared multi-mode spectrograph conceived for the next-generation telescopes
Year: 2025
Type: article
Abstract: The next generation of Extremely Large Telescopes (ELTs), with their wide apertures and advanced multi-conjugate adaptive optics (MCAO) systems, will provide unprecedented sharp and deep observations, even surpassing the capabilities of the James Webb Space Telescope. SHARP, a near-infrared (0.95 to 2.45 μm) spectrograph, is designed to optimally exploit the collecting area and angular resolution of these forthcoming ELTs and specifically optimized for the MCAO unit MORFEO at the ELT. SHARP includes two main units: NEXUS, a multi-object spectrograph, and VESPER, a multi-integral field unit. We outline the opto-mechanical design of SHARP based on the scientific requirements of the project. The optical design is engineered to meet project specifications, featuring a compact mechanical structure that minimizes the required cryogenic power while ensuring ease of access for maintenance and straightforward assembly procedures.
Authors: Hossein Mahmoodzadeh, Paolo Saracco, Paolo Conconi, Bortolino Saggin, Diego Scaccabarozzi, Ivan Di Antonio, Marco Riva, Emilio Molinari, Carmelo Arcidiacono, Ilaria Arosio, Enrico Cascone, Vincenzo Cianniello, Vincenzo De Caprio, Gianluca Di Rico, Benedetta Di Francesco, Christian Eredia, Paolo Franzetti, Marco Fumana, Davide Greggio, Elisa Portaluri, Marcello Scalera
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4412625947